2nd Nissan 1st QQ

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Cbk1006
Posts: 1
Joined: Fri Jan 21, 2022 11:47 am
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by Cbk1006 » Fri Jan 21, 2022 12:02 pm

Hi first post regarding my 2021 QQ. Had it back to the dealers yesterday. I find that the blower blows hot when set at 16deg. Cool at low setting. I have the aircon off with recycled air also off. In 30 years off driving this would be cold air particularly in the winter. Dealer states that I need to run the air con at all times if I want cool air.

For those with a J12, is your blower hot or cold without the aircon on.

TIA

andy2019
Posts: 493
Joined: Sat Oct 26, 2019 8:47 pm
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by andy2019 » Fri Jan 21, 2022 12:16 pm

Most cars these days have air con on from the moment you start the car as standard it's great for keeping the windows clear quicker when driveing

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calnorth
Posts: 2616
Joined: Mon Feb 11, 2019 2:01 pm
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by calnorth » Fri Jan 21, 2022 1:01 pm

The physical diagram of the J11b Heat/Aircon Unit shows that the drawn in air flows as follows:

FLOW PATH: I suspect this will be the same for a J12. Simple.
External Air In via Recirc ON/OFF door
Through Blower
Through Air Filter
Through Evaporator
Onward through Heater Matrix or Bypassed to internal outlets . (Temperature manual or auto controlled)

If Air is hot then air is directed through the heater matrix
If Air is cold with Air Con OFF its either the external air is quite cold or the Air Con is ON?

The j11b gets fairly warm about 20deg C. 16 deg is rather low for being hot? These systems should have been set correctly at production regarding actual and indicated Temp.

Dealer? Aircon perhaps to start with, clear fogging...or direct hot air at w/screen.
Mk2 Qashqai Facelift - J11b (2017–and onward)
1.6 Dig-T N-Connecta

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gloucester
Posts: 4502
Joined: Sun Apr 03, 2016 7:04 am
Location: Gloucestershire, England
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by gloucester » Fri Jan 21, 2022 7:13 pm

Cbk1006 wrote:
Fri Jan 21, 2022 12:02 pm

Hi first post regarding my 2021 QQ. Had it back to the dealers yesterday. I find that the blower blows hot when set at 16deg. Cool at low setting. I have the aircon off with recycled air also off. In 30 years off driving this would be cold air particularly in the winter.

Welcome to this forum.

The J12 has climate control and this should work whether AC is on or not. The temperature you set on the dial is not the temperature of the incoming air but the temperature at the thermostat in the cabin (I don't know where that is in a J12).

So if you set the temperature control to 16degC and it's less than 16degC in the car then, yes, it will come out hot, because it's trying to warm the car up.

However if the temperature in the car is higher than 16degC then it should come out cold (i.e. external air temperature which is around 8degC at present).

Try getting the temperature in the car stable at 20degC then switch to 16degC and see if it then comes out cold.

Cbk1006 wrote:
Fri Jan 21, 2022 12:02 pm

Dealer states that I need to run the air con at all times if I want cool air.

My experience with dealers is that they don't know much at all. My dealer said stop/start doesn't work when the AC's on - which isn't the case.
(2015 Nissan Qashqai Tekna DIG-T 1.2 sold 15/6/18) ~ 2018 Suzuki Ignis SZ5 - 2018 Yamaha MT-07

QaiFan
Posts: 549
Joined: Fri Apr 02, 2021 6:33 am
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by QaiFan » Fri Jan 21, 2022 7:15 pm

"My experience with dealers is that they don't know much at all. My dealer said stop/start doesn't work when the AC's on - which isn't the case."
I got warnings on the display that AC got prioritized over the Start/Stop system !

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gloucester
Posts: 4502
Joined: Sun Apr 03, 2016 7:04 am
Location: Gloucestershire, England
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by gloucester » Fri Jan 21, 2022 7:33 pm

Yes it does - but my dealer told me Stop/Start wouldn't work any time AC was on - which simply isn't the case.
(2015 Nissan Qashqai Tekna DIG-T 1.2 sold 15/6/18) ~ 2018 Suzuki Ignis SZ5 - 2018 Yamaha MT-07

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